The Bersa Thunder 9 is a full-size alloy-frame double-action 9mm service pistol with a 4-inch barrel and 17-round capacity. It was adopted by several Argentine law enforcement and military units and offers a rugged metal-frame alternative to polymer service pistols at a competitive price. Type: Pistol Action: Semi-Automatic Caliber: 9mm Capacity: 17 Year introduced: 1993, Argentina Weight: 30 oz Overall length: 7.6" Status: Active Military use: Yes Intended use: Service, Law Enforcement